Home / 856,820.44-1,283,967.21-477,218.29

Finding the Fourth Proportional to 856,820.44, 1,283,967.21 and 477,218.29

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Solution

The fourth proportional to 856,820.44, 1,283,967.21 and 477,218.29 is: 715,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,820.44 : 1,283,967.21 = 477,218.29 : x
  2. Step 2: Convert to fraction form
    856,820.44/1,283,967.21 = 477,218.29/x
  3. Step 3: Cross multiply
    856,820.44x = 1,283,967.21 × 477,218.29
  4. Step 4: Simplify right side
    856,820.44x = 612,732,636,372.27
  5. Step 5: Solve for x
    x = 612,732,636,372.27/856,820.44
  6. Step 6: Final answer
    x = 715,123.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.